tree 2371e9c1dea647c690a2b01255d462656a8393ce
parent 057cf65e4f715f62acccbd9125cf63eddfe69d30
author Dan Carpenter <dan.carpenter@oracle.com> 1368952596 +0000
committer David S. Miller <davem@davemloft.net> 1369082294 -0700

isdn/kcapi: fix a small underflow

In get_capi_ctr_by_nr() and get_capi_appl_by_nr() the parameter comes
from skb->data.  The current code can underflow to one space before the
start of the array.

The sanity check isn't needed in __get_capi_appl_by_nr() but I changed
it to match the others.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>